<template>
  <div class="search-container">
    <!-- 搜索栏 -->
    <!--
          Tips: 在 van-search 外层增加 form 标签，且 action 不为空，即可在 iOS 输入法中显示搜索按钮
         -->-
    <form class="search-form" action="/">
      <van-search
        v-model="searchText"
        show-action
        placeholder="请输入搜索关键词"
        background="#3296fa"
        @search="onSearch"
        @cancel="onCancel"
        @focus="isResultShow = false"
      />
    </form>
    <!-- /搜索栏 -->

    <!-- 搜索结果 -->
    <search-result v-if="isResultShow"
    :search-text="searchText" />
    <!-- /搜索结果 -->

    <!-- 联想建议 -->
    <search-suggestion v-else-if="searchText" :search-text="searchText" @search="onSearch"/>
    <!-- /联想建议 -->

    <!-- 搜索历史记录 -->
    <search-history v-else :search-histories="SearchHistories"
    @clear-search-histories="SearchHistories=[]" 
    @search="onSearch"/>
    <!-- /搜索历史记录 -->
  </div>
</template>
<script>
import SearchResult from "./components/search-result";
import SearchHistory from "./components/search-history";
import SearchSuggestion from "./components/search-suggestion";
import { setItem,getItem } from "@/utils/storage";
export default {
  name: "SearchPage",
  components: {
    SearchResult,
    SearchHistory,
    SearchSuggestion,
  },
  props: {
     
  },
  data() {
    return {
      searchText: "", // 绑定输入框变量
      isResultShow: false,
       SearchHistories:getItem("search-histories")||[],

    };
  },
  computed: {},
  watch: {
    SearchHistories(val){
      setItem("search-histories",val)
    }
  },
  created() {},
  methods: {
    onSearch(val) {
     this.searchText=val
     const index=this.SearchHistories.indexOf(val)
     if (index !==-1) {
       this.SearchHistories.splice(index,1)
     }
     this.SearchHistories.unshift(val)
     this.isResultShow=true
    },
    onCancel() {
      this.$router.back();
    },
  },
};
</script>
<style scoped lang="less">
.search-container {
  padding-top: 108px;
  .van-search__action {
    color: #fff;
  }
  .search-form {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1;
  }
}
</style>